#0A1B49#0A1B49

#0A1B49 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.2% C 0.089 H 265.0°. Best body text is #FFFFFF at 16.59:1 contrast (WCAG AA passes).

Color values

HEX	#0A1B49
RGB	rgb(10, 27, 73)
HSL	hsl(224, 76%, 16%)
HSV	hsv(224, 86%, 29%)
CMYK	cmyk(86.3%, 63%, 0%, 71.4%)
CIE-LAB	lab(11.48, 12.81, -30.66)
CIE-LCH	lch(11.48, 33.23, 292.68°)
OKLab	oklab(24.16% -0.0078 -0.0885)
OKLCH	oklch(24.16% 0.089 265)
XYZ	xyz(1.7193, 1.3292, 6.4680)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1B49 #49380A

analogous

#0A3B49 #0A1B49 #190A49

triadic

#0A1B49 #490A1B #1B490A

tetradic

#0A1B49 #490A3B #49380A #0A4919

square

#0A1B49 #490A3B #49380A #0A4919

split-complementary

#0A1B49 #49190A #3B490A

monochromatic

#040A1B #040A1B #0A1B49 #112F7F #1943B5

Accessibility & contrast

On white

16.59

#0A1B49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#0A1B49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1B49

16.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1B49	#FFFFFF	#000000	##FFFFFF
##0A1B49	1.00	16.59	1.27	16.59
#FFFFFF	16.59	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214B

Deuteranopia (green-blind)

#001C48

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0a1b49;
/* rgb */ color: rgb(10, 27, 73);
/* oklch */ color: oklch(24.2% 0.089 265.0);

Tailwind

colors: {
  custom: {
    50: '#55567c',
    500: '#0a1b49',
    950: '#000000',
  },
}

SCSS

$custom: #0a1b49;
$custom-light: #55567c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1b49",
  "rgb": {
    "r": 10,
    "g": 27,
    "b": 73
  },
  "hsl": {
    "h": 223.81,
    "s": 75.904,
    "l": 16.275
  },
  "oklch": {
    "l": 0.24156,
    "c": 0.08884,
    "h": 265
  },
  "luminance": 0.01329
}

Semantic roles & 50–950 ramp

primary

#0A1B49

secondary

#866D29

accent

#BF35F2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #0A1B49

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →